Not a bust but he's in the same territory as Brandon Cooks for us. Not gamechanging in the way we thought he'd be, and Cooks had a concussion w/ us as well if I'm not mistaken.
https://www.draftsharks.com/fantasy/injury-history/brandin-cooks/6946
Olave's had 5 documented concussions. Didn't realize that, don't they become easier to get?
https://www.draftsharks.com/fantasy/injury-history/chris-olave/12596